This pattern was originally a participating pattern in the Canadian Crazy Train.
Iron Bridge features a cabled bridge motif that was inspired by the incredible train bridges that span mountain valleys in Western Canada. The bridge stands on ribbed columns on a background of reverse stockinette. The gusset increases are integrated into the pattern, and the heel is turned using a Strong-style heel with no stitches to pick up.
The pattern pdf contains the Bridge chart with the repeat indicated with a heavy red outline.
Gauge 36 stitches and 44 rows = 4 inches
in stockinette in the round
Needle size US 1½ - 2.5 mm
Yardage 350 - 450 yards (320 - 411 m)